Ghana was the first country to gain independence from European colonial rule in 1957.

The Truman Doctrine was a policy adopted by the United States in 1947 to contain the spread of communism.

The United States was the first country to test a nuclear weapon in 1945.

The Nuclear Test Ban Treaty was a treaty that was signed between the United States and the Soviet Union in 1963 to ban all nuclear weapon tests.

The Vietnam War was a war that was fought between the United States and Vietnam from 1954 to 1975.

The Reagan Doctrine was a policy that the United States adopted to promote democracy and human rights in the world.

The Berlin Wall was a wall that was built between East and West Berlin in 1961.

The Civil Rights Movement was a movement that sought to end racial segregation in the United States.

Nikita Khrushchev was the leader of the Soviet Union from 1953 to 1964.

John F. Kennedy was the leader of the United States from 1961 to 1963.

The Cuban Missile Crisis was a crisis that occurred in Cuba in 1962.

The Alliance for Progress was a policy that the United States adopted to promote economic development in Latin America.

The Pan-African Movement was a movement that sought to end colonialism in Africa.

Nelson Mandela was the leader of the African National Congress from 1960 to 1991.

Ahmed Ben Bella was the leader of the Algerian National Liberation Front from 1954 to 1962.